Improvement in straw-gutters



O. BRUSTMAN. Straw-Gutter.

No. 206,224. ,2 Patentd July 23, I878.

WITNESSES: I

ATTORNEYS.

NJETERS. PHOTO-WHOGRAPHER. WASHINGTON. n, c.

UNITED STATES PATENT QFFIGEQ CHARLES l3 tUSTMAN, OF FREMONT, NEW YORK.

IMPROVEMENT IN STRA W-CUTTERS.

Specification forming part of Letters Patent No. 206,224, dated July 23,1878; application filed May 16, 1878.

To all 2071012 it may concern:

Be it known that I, CHARLES BRUSTMAN, of Fremont, in the county ofSullivan and State of New York, have invented a new and ImprovedStraw-Cutter, of which the followin g is a specification Figure 1 is afront elevation,-partly in section. Fig. 2 is a side elevation. Fig. 3is a detail view of the feed-gear. Fig. 4 is a detail sectional view ofthe end of one of the feed rollers. Fig. 5 is an end elevation of thefeedrollers.

Similar letters of reference indicate correspondin g parts.

My invention relates to machines for cutting hay or straw for feed.

The invention will first be described in connection with the drawing,and then pointed out in the claim.

In the drawing, A is the frame of the ma chine, which supports thestraw-box B, and all of the working parts of the machine. In this frame,under the straw-box, there are two shafts, O l), which are placed atright angles to each other, and geared together by miterwheels a I). Theshaft 0 has upon its overhanging end a fly-wheel, E, and upon the shaftD is mounted a fly-wheel, F, which revolves in front of the throat ofthe straw-box, and carries two knives, whose edges are formed on aspiral line, and are arranged to make a drawing out across the throat ofthe straw-box. The upper part, c, of the throat-plate of the straw-boxis movable in guides formed in the end posts of the machine, and isconnected by bars 0 with a cross-bar, d, that is connected with a lever,Gr, which is fulcrumed on a rod, 0, that extends through the twouprights f. The lever G is forced by a spring, it, into contact with asuitable cam, g, which is secured to the face of the miterwheel b.

The position of the double cam on the wheel b is such that the lever Gis raised when the straw is moved forward in the feed-box, thus raisingthe upper part of the throat-plate, making the throat larger, so thatthe straw may be readily moved forward by the feedwork, and the lever ispermitted to move downward just before the knife reaches the projectingends of the straw, so that the straw they are made to rotate together.The upper roll, 2', is grooved or corrugated, and is loose on its shaft,so that it may rise and fall to accommodate itself to the amount ofstraw passing through the machine. It is made to rotate by lugsprojecting from opposite sides of the shaft, which are received incorresponding recesses formed in the roll. The roll is pressed downwardby two curved springs that bear upon it at its ends.

The driving-crank is attached to the lower roller-shaft, on which thereare two similar wheels, j, which engage toothed wheels k on the shaft ofthe upper feed-roll, and impart to it an intermittent rotary motion. Thewheels j are provided with four teeth, I Z and m m. These teeth eachextend over nearly a quarter of the circumference of the wheel, and eachhas a straight driving-face, n, and a curved face, 0. The teeth Z Zarearranged diametrically opposite each other, and the teeth m m arearranged in the intervening spaces; but the teeth I 1 lie in one plane,and the teeth m m lie in another plane, both planes being parallel andat right angles with the shaft. The wheel k, that is driven by the wheelj, is provided with two series of teeth, 1 g, which also lie indifferent but parallel planes. These teeth are provided with a straightside, which is engaged by the straight side of the teeth I m. They alsohave a curved side. They are narrow, and are arranged so that when oneof them moves as far as it can be carried by one of the teeth of thewheel j, it escapes the said wheel, and the tooth that escapes and thenext one in advance of it contact with the curved face of the tooth onthe wheel j, and hold the wheel k, and consequently the rollersconnected with it, stationary until the tooth of the wheel k that isbetween the two teeth engaged by the wide tooth on the wheel j isengaged by the straight face of the next wide tooth of the said wheel.

The wheels j on the driving-shaft h are of different diameters, and thetwo wheels k are also of different diameters, and are arranged to slideon the roll-shaft, so that either of I them may be thrown into gear withits driver.

The object in this arrangement is to provide a means of altering thelength of the feed out. A shield, l, is placed behind the cutting-wheelon the crank side of the machine, to prevent the hands from getting intothe wheel.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The combination of the wheel j, having wide-facedteeth l m, arranged in different planes, and the Wheel 7;, having teethq, arranged in different planes, substantially as herein shown anddescribed.

CHARLES BRUSTMAN.

YVitnesses:

FRANCIS BEYERLE, JosEPH RILLE.

